Heel-seat-shaping machine



S. STELLA. HEEL SEAT SHAPING MACHINE. APPLICATION FILED APR. 19. 1920.

1,412,375. Patented Apr. 11, 1922- 3; 2 SHEETS-SHEET I- 5 5 'vwfirfifi.Rii'i]A 0 INVENTOR.

W I TNESS:

A TTORNEYS WITNESS:

s. STELLA.

HEEL SEAT SHAPING MACHINE. APPLICATION FILED APR. 19. 1920.

1,412,375' Patented Apr. 11, 1922. 6 zsnms-snzzr 2. I

F 2 g 2 i a? INVENTOR.

BY I

ATTORNEYS PATENT OFFICE.

SALVATORE STELLA, 0F BROOKLYN, NEW YORK.

HEEL-SEAT-SHAPING MACHINE.

Application filed April 19,

T 0 all whom 2'2. ma' z concern.

Be it known that I, SALVATORE STELLA, a subject of the King of Italy,residing at Brooklyn, in the county of Kings and State of New York, haveinvented. new and useful Improvements in Heel-Seat-Shaping Machines, ofwhich the-following is a specification.

This invention relates essentially toa ma chine for shaping the seat ina shoe to prepare it for receiving a wood heel which is usually glued tothe shoe.

An object of the invention is to provide a presser die mounted on aplunger and made to compress the rim portions of the sole so that theheel can be easily positioned at a saving of time and labor. 7

Another object of the invention is to provide means for adjusting thedie to make it fit shoes of different dimensions.

Another object of the invention is to provide a casing made to envelopethe shoe, and a clamp having swinging jaws to engage the envelope, thusholding the shoe in a fixed position while the die is in action.

The present invention is designed to be used" in connection with theheel clamping machine described in the United States Patent No.1,282,971, granted to me October 29th, 1918; P r

The invention resides more particularly in the novel combinationshereinafter described and claimed, reference being made to theaccompanying drawing in which:

Fig. 1 represents a side elevationof a machine embodying this invention.

Fig. 2 is a rear view of the upper portion ofthe machine,

Fig. 3 is a vertical section of the plunger die.

Fig; 4 is an inverted plan view of the same.

Fig. casing.

Fig. 6 is a detail side elevation showing the plunger slide retracted.

In the drawings the numeral '7 designates a base having front and rearcolumns 8 and 9 respectively supported on the base. A shaft 10 projectsupwardly from the frontcolumn. On the upper portion of the shaft isarranged a sleeve '11 havinga bolt 12 coacting with a groove in theshaft. The bolt and groove connection prevent vertical displacement ofthe sleeve relative to the 5 is a perspective view of" the shoe shaft,but permits the sleeve to turn axially Specification of L tt rs PatentPatented Apr. 11, 1922.

1920. Serial No. 374,839.

on the shaft. A spring actuated pin 13 is arranged in a bore in the topof the sleeve and the upper end of the pin serves to mount thereon orcentre a last 14 carrying a shoe 15 best seen in Fig. 1. I

At the lower portion of the sleeve is pivoted a bifurcated lever 16having a brace 17 extending upwardly from the rear of the lever. To theupper end of the brace is secured a casing 18 made to sheath the sideand rear portions of the shoe. The casing is practically U-shaped and ispreferably made of flexible material such as leather to onform to thecurvature of the shoe. A link 19 connects the said lever to a strap 20fixed to a coupling 21 which is loosely mounted on'the shaft. The upwardmovement of the coupling is stopped by means of a collar 22 secured tothe shaft, while the lower portion of the coupling issup'ported on acoiled spring 23 mounted on the shaft between the top of the column 8and the coupling. The coupling is connected at 24 to: one end of a rod25 the other end of the latter being pivoted to the treadle 26swingingl-y mounted on a pivot 27 fixed to the rear of the frame.

On the rear of the sleeve is swingingly fulc'rumed at 28 a pair of.clamping members having jaws 29 and tail portions 30 made to engage thelever 16 as indicated in Fig. 2. Springs 31 tend to open or spread thejaws and at the same force the tail portions, outward to impinge onthelever. lVhen it is desired to hold the shoe in a fixed position thetreadle 26 is pushed downward sliding the couplingto compress the spring10 and swing the lever 16 downward. The movement of the lever istransmittezil to the tail ends of the clamp moving them toward eachother and the jaws will grip the sides ofthe casing. The casing beingflexible, it will adapt itself to the shape of the shoe and thus hold itin a fixed position while it is operated on. The brace 17 serves tomount the casing over the top of the sleeve and the slight movement ofthe lever downward actuates the brace and positions the casing relativeto the insertion of the shoe.

A. plunger consisting of a die 32 presses on the rim portions of theshoe when the machine is in action. The die is made of two sections asshown in Fig. at, and each section is equipped with a rack 33 engaged bya pinion 34 mounted on the lower end of a shaft extending upward. Athumb button 36 is secured to the upper end of the shaft and actuationof the button rotates the gear and operatesthe racks to expand orcontract the two die sections. The button can be provided with a pointerto coact with degrees denoting the size of the shoe and marked on theannular flange 37 of a nut located below the button.

The nut is screwed on to the top of a sleeve 38 arranged about the shaftand an arm 39 is connected to the sleeve. A coiled spring 40 is mountedbetween a shoulder on the lower portion of the sleeve and the arm.

- The spring normally presses the arm against the flange on the nut, butwhen the die is in contact with the shoe, it will compensate for anycurve or convexity of the shoe. The die isconsequently suitable forshaping right or left shoes in which the shape varies. The arm slides ina bearing 41 and a spring 42 retracts the arm as indicated in Fig. 6,when the pressure is removed from the plunger. The stem of the bearingis guided in the column 9, and a link 43 connects it to a treadle 44pivoted to the fulcrum 27 at the rear-of the column. A spring 45restores the treadle to its normal position and elevates the die fromthe shoe. The downward movement of the arm 39 compresses the spring 40and forces the lower obtuse ends of the die into contact with the upperrim portions of the sole, so that any upward movement of the die whilecompressing the leather is taken up by the spring and consequent injuryto the leather is obviated. A rack 46 pivoted to the treadle andnormally engaged by a dog 47 will lock thetreadle when the plunger is inaction.

The operation of the machine is as follows: i

The shoe mounted on thelast is placed on the pin 13 and the casing 18 isclamped to the shoe by pushing the treadle 26 downward. The plunger dieis slid outward by the operator from the bearing 41 until it is in theproper position over the shoe. The treadle 44 is then pushed downwardforcing the die on to the sole to bevel or convex the rim and thusprepare it for positioning the heel. The dog holds the treadle in afixed positionwhile the die is in action, but when the dog is operatedto disengage it from the teeth of the rack the die will be carried upwith the bearing 41 and automatically slid backward by the compressionof the spring. In order to examine the shoe without removing, it can beturned on its axis moving therewith the sleeve 11 its connections withthe shoe and the coupling beneath the sleeve. The die while it is out ofaction can be heated by a gas jet or otherwise.

I claim:

1. A heel seat shaping machine comprising a column for mounting a shoe,-a sleeve arranged on the column, a casing made to envelope a portion ofthe shoe, jaws for clamping the casing, means connected to the sleevefor actuating the jaws, and a spring pressed plunger die made to coactwith the shoe.

2. A heel seat shaping machine comprising a column for mounting a shoe,a sleeve arranged on the column, a casing made to envelope a portion ofthe shoe, jaws for clamping the casing, a lever connected to the sleevefor actuating the tails of the jaws, a brace carried by the lever formount ing the casing, and a spring pressed plunger die made to coactwith the shoe.

3. A heel seat shaping machine comprising a column for mounting theshoe, a sleeve to engage the shoe, means for actuating the plunger toelevate or lower the die, and means including a pinion and racks foradjusting the sections to expand or contract the die.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

SALVATORE STELLA.

lVitnesses SAMUEL -LEWIS, WVILLIAM MILLER.

